diff --git a/custom/common_libs.custom.html b/custom/common_libs.custom.html
index 2ab58ed6..0a9aa77f 100644
--- a/custom/common_libs.custom.html
+++ b/custom/common_libs.custom.html
@@ -29,7 +29,10 @@
         href="{{ cdn_url }}/npm/@picocss/pico@2/css/pico.{{ site_color }}.min.css" />
 {% endif %}
 <style>
-* { border-radius: 0!important; }
+* {
+  border-radius: 0!important;
+  backdrop-filter: unset!important;
+}
 :where(nav li)::before {
   float: none;
   content: " ";